From 69f5dcaa990e3f43c89fc5cec4ae92ececdb12f3 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 3 Nov 2025 09:29:11 +0100 Subject: [PATCH] iio: common: scmi_sensors: Get rid of const_ilog2() Fisrt of all, const_ilog2() was a workaround of some sparse issue, which was never appeared in the C functions. Second, the calls here are done against constants and work with a bit of luck. Replace this altogether by a pre-calculated simple integer constant. Amend a comment to give a hint where it comes from. Signed-off-by: Andy Shevchenko Signed-off-by: Jonathan Cameron --- drivers/iio/common/scmi_sensors/scmi_iio.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/iio/common/scmi_sensors/scmi_iio.c b/drivers/iio/common/scmi_sensors/scmi_iio.c index 39c61c47022a5..5136ad9ada040 100644 --- a/drivers/iio/common/scmi_sensors/scmi_iio.c +++ b/drivers/iio/common/scmi_sensors/scmi_iio.c @@ -66,10 +66,9 @@ static int scmi_iio_sensor_update_cb(struct notifier_block *nb, /* * Timestamp returned by SCMI is in seconds and is equal to * time * power-of-10 multiplier(tstamp_scale) seconds. - * Converting the timestamp to nanoseconds below. + * Converting the timestamp to nanoseconds (10⁹) below. */ - tstamp_scale = sensor->sensor_info->tstamp_scale + - const_ilog2(NSEC_PER_SEC) / const_ilog2(10); + tstamp_scale = sensor->sensor_info->tstamp_scale + 9; if (tstamp_scale < 0) { do_div(time, int_pow(10, abs(tstamp_scale))); time_ns = time; -- 2.47.3